Intro:

This report provides an analysis of ocean acidification data collected from Brewers Bay and Hind Bank. This data was originally being used to try to detect if upwelling at deeper sites (i.e. Hind Bank) led to periodic acidification conditions.

Site Information:

Sites Location Reef Complex Depth (m) Latitude Longitude Description
Brewers Bay St. Thomas Nearshore 6 18.34403 -64.98435 High cover Orbicella annularis reef near UVI
Hind Bank St. Thomas Mesophotic 39 18.20217 -65.00158 Mesophotic coral reef at Red Hind fish spawning aggregation in the Hind Bank Marine Conservation District

Instrument Deployment Metadata:

Below is a table summarizing the metadata for each instrument deployment.

Instrument Site Start Date End Date File Name
ECO-PAR Brewers Bay 2022-01-25 2022-03-28 ECOPAR_6337_BrewersBay_220125_220328.xlsx
ECO-PAR Hind Bank 2022-01-25 2022-03-27 ECOPAR_6336_HindBank_220125_220327.xlsx
SeaFET Brewers Bay 2021-12-07 2022-03-28 SeaFET2-2062-Data-211207_220328_BrewersBay.csv
SeaFET Hind Bank 2021-12-13 2022-03-27 SeaFET2-2054-Data-211213_220327_HindBank.csv
ECO-PAR Brewers Bay 2022-10-14 2023-03-07 ECOPAR_6336_BrewersBay_221014_230307.xlsx
ECO-PAR Hind Bank 2022-10-14 2023-03-07 ECOPAR_6337_HindBank_221014_230307.xlsx
SeaFET Brewers Bay 2022-10-15 2023-03-07 SeaFET2-2062-Data-221015_230307_BrewersBay.csv
SeaFET Hind Bank 2022-10-15 2023-10-29 SeaFET2-2054-Data-221015_221029_HindBank.csv
SAMI CO2 Brewers Bay 2022-10-15 2023-03-07 SAMI_C0191_221015_230307_BrewersBay_pro.txt
SAMI CO2 Hind Bank 2022-10-15 2023-02-28 SAMI_C0101_221015_230228_HindBank_pro.txt
SBE37 Brewers Bay 2022-10-15 2023-03-07 SBE37_22456_BrewersBay_2210_2303_with_salinity.csv
SBE37 Hind Bank 2022-10-15 2023-03-07 SBE37_13134_HindBank_2210_2303_with_salinity.csv

EcoPAR Data

EcoPAR first deployment 1/25/22-3/28/22

EcoPAR second deployment 10/14/22-3/7/23

SBE-37 Data

SBE-37 second deployment only 10/15/22- 3/7/23. First deployment did not work from sensor/user error.

SeaFet Data

SeaFet first deployment: 12/7/21-3/28/22 (Brewers) 12/13/21-3/27/22 (Hindbank)

SeaFet second deployment: 10/15/22-3/7/23 (Brewers) 10/15/22-10/29/22 (Hindbank). There were sensor issues with data after 10/29/22, All values were negative. Sea-Bird suggested that the instrument slowly become flooded with water. Could not recover missing/damaged data.

SAMI Data

SAMI deployment: 10/15/22-3/7/23 (Brewers) 10/15/22-2/28/23 (Hindbank). We only have the second deployment. During the first deployment, the sensor had issues and needed to be sent back for repairs. Sunburst thinks air got in the pump and caused it to get locked up. They recommended not to use the data. Could not recover missing/damaged data.

Temperature - all Instruments

Finalized Temperature over time for all instruments during the 2nd deployment time frame.